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Finding the Fourth Proportional to 335,218, 502,728.58 and 98,504.40

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Solution

The fourth proportional to 335,218, 502,728.58 and 98,504.40 is: 147,727.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,218 : 502,728.58 = 98,504.40 : x
  2. Step 2: Convert to fraction form
    335,218/502,728.58 = 98,504.40/x
  3. Step 3: Cross multiply
    335,218x = 502,728.58 × 98,504.40
  4. Step 4: Simplify right side
    335,218x = 49,520,977,135.75
  5. Step 5: Solve for x
    x = 49,520,977,135.75/335,218
  6. Step 6: Final answer
    x = 147,727.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.